Andrew Bogut was largely a spectator as his Golden State Warriors downed the Houston Rockets in an NBA playoffs thriller while Aron Baynes sent a scare through the Boston Celtics when he aggravated an ankle injury in their domination of the top-seeded Milwaukee Bucks.

The Warriors beat the Rockets 104-100 in the much-anticipated game one of the Western Conference semi-finals series in Oakland on Sunday (local time).

The Warriors and Rockets fought a tense fourth quarter but with 24 seconds to go Steph Curry hit a clutch three-pointer.

With 4.4 seconds left the Rockets' Chris Paul was tossed out of the game for his second technical foul after he protested the referees not calling fouls on himself and fellow All-Star James Harden in their final desperate sequence.